REngine

Rule Engine

AppSetting配置：<br />     <appSettings><br />         <add key="REngine.RulefilesPath" value="E:\rules"/><br />         <add key="REngine.ThrowExceptionIfNotfoundRule" value="1"/><br />     </appSettings><br /> <br /> 规则文件(*.rule)定义如下：<br />     #region 折扣规则<br />         rule default<br />             return 1;<br />         end rule<br />         rule A公司<br />             if(customerScore>=0&&customerScore<100)<br />                 return 1;<br />             if(customerScore>=100&&customerScore<300)<br />                 return 0.8;<br />             return 0.5;<br />         end rule<br />         rule B公司<br />             if(customerScore>=0&&customerScore<100)<br />                 return 0.9;<br />             if(customerScore>=100&&customerScore<300)<br />                 return 0.7;<br />             return 0.6;<br />         end rule<br />     #endregion<br /> <br /> C#代码如下：<br /> <br /> Console.WriteLine("折扣规则 - 简单使用");<br /> {<br /> var result = REngine.InvokeAsFloat("折扣规则", REngine.CreateParameter("customerScore", 220));<br /> Console.WriteLine(" " + result);<br /> }<br /> <br /> Console.WriteLine("折扣规则 - 区分公司 - A公司");<br /> {<br /> var result = REngine.InvokeAsFloat("折扣规则", "A公司", REngine.CreateParameter("customerScore", 220));<br /> Console.WriteLine(" " + result);<br /> }<br /> <br /> Console.WriteLine("折扣规则 - 区分公司 - B公司");<br /> {<br /> var result = REngine.InvokeAsFloat("折扣规则", "B公司", REngine.CreateParameter("customerScore", 220));<br /> Console.WriteLine(" " + result);<br /> }<br /> <br /> Console.WriteLine("折扣规则 - 区分公司 - C公司");<br /> {<br /> var result = REngine.InvokeAsFloat("折扣规则", "C公司", REngine.CreateParameter("customerScore", 220));<br /> Console.WriteLine(" " + result);<br /> }<br />